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TABLE 1.-Summary of initial units of Colorado River storage project and 12 participating projects

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32, 400

7,287,000

7,287,000 1,500,000 5,787,000

7,287,000

143, 020 243, 470

61,000

48,800

7

143, 020 243, 470 1,061, 000

433, 300 311, 643, 300 6, 907, 900 46, 699,000 45, 500, 000 207,036, 400 48, 800 1,046, 300 930, 339, 300 727, 907, 900 546, 056, 000 45, 500,000 305, 375, 400

82, 046, 500 82, 046, 500

217, 188, 900 299, 235, 400 814, 884, 900 896, 931, 400

1 Exclusive of nonreimbursable CRDF expenditures. 2 Costs allocated to power and municipal water are repaid with interest, including interest during construction.

Repayment by water users toward construction costs over 50-year repayment period beyond a reasonable irrigation development period except 60-year period for Eden project and 68-year period for Paonia project.

Includes $15,191,000 in irrigation revenues and $45,500,000 from municipal and indus

trial water users.

Includes $27,838,000 of excess power revenues from the central Utah project power.
plants accruing during the irrigation repayment periods of this project.

Exclusive of $5,500,000 allocable to purposes of the ultimate phase of central Utah
project.

7 Includes cost ($7,287,000) of authorized Eden project now nearing completion and
$2,035,000 expended on Paonia project under previous authorization.

TABLE 2 (a).-Summary of additional units of Colorado River storage project and additional participating projects

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TABLE 2 (a).-Summary of additional units of Colorado River storage project and additional participating projects

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1 Costs allocated to power and municipal water are repaid with interest, including interest during construction.

Repayment by irrigation water users toward construction costs over a 50-year repay-
ment period following a reasonable development period.

A power rate of more than 6 mills would be required for these storage units to repay
their construction cost allocated to power in 50 years at 2.5 percent interest, and an exten-

sion of the payout period or an increase in the average power rate would be required to accomplish repayment of the irrigation costs.

$800,000 of the $36,400,000 estimated cost for Navajo Dam and Reservoir allocated to the San Juan-Chama project for added capacity necessary to serve the San Juan-Chama project.

STATEMENT ON LA BARGE PROJECT, WYOMING

The potential La Barge project would make a direct flow diversion from Green River, a principal tributary of the Colorado River, to provide for the irrigation of 7,970 acres of desert lands in Sublette and Lincoln Counties in southwestern Wyoming. Only about 300 acres of these lands receive any irrigation water at the present time. Their meager supply would likely be used on other lands outside the project area if the project was constructed. Water for domestic and stock-watering use on farms in the project area would be taken from project canals and from shallow wells that would be developed by the water users.

Project lands would generally be utilized for the support of livestock enterprises. Climatically adaptable crops, such as hay, small grain, pasture, and some garden crops would be produced. The principal livestock would be dairy cows and sheep. Analyses made indicate that an average farm of about 210 irrigated acres in the project area would provide the farm family with a reasonable standard of living, provide employment for the available family labor, and permit payment of operation, maintenance, and replacement costs and some payment toward construction costs of project facilities.

Detailed land clasification surveys show the project lands to be suitable for sustained production of crops under irrigation farming. Water supply studies, based on records of streamflows as they have occurred in the past, indicate that an adequate irrigation supply of 24,300 acre-feet annually would be available for the project from direct flows with permissible shortages in occasional drought years. A water right for the project can be obtained under Wyoming State law. Construction features of the project would include a main diversion and distribution canal with an initial capacity of 175 second-feet and extending approximately 40 miles along the west side of Green River, a few short laterals, and a few short drains as required. Construction of the main canal and the laterals would require about 2 years. Drains would not be completed until a few years after application of water to the land so that the extent of works required could be determined. A period of 2 to 3 years would be required to construct the project.

This statement is based on the physical plan of project development presented in the Bureau of Reclamation report on the La Barge project, Wyoming, dated January 1951, a supplement to the Colorado River storage project report dated December 1950. Results of current January 1953 estimates for this project plan are summarized in the following project summary tabulation.

Irrigated acreage:

New lands.

Summary data, La Barge project, Wyoming

Principal agricultural production:

Hay, pasture, small grain, dairy cows, and sheep.

Water supply:

Average annual increase in direct flow diversions__.
Average annual increase in storage yield_.

Stream depletion (average annual)__

Acres 7,970

Acre-feet 24, 300

None

14, 200

Project works:

Construction features would include main diversion and distribution canal with initial capacity of 175 second-feet and extending approximately 40 miles along west side of Green River, a few short laterals and a few short drains. Construction cost and repayment:

Estimated cost---.

Reimbursable cost allocated to irrigation.

Nonreimbursable allocation___.

Repayment by

Irrigation water users.

Power revenues from Colorado River storage project----

Total___

Annual operation, maintenance, and replacement costs---
Benefit-cost ratio___.

$1,673, 300

1,673, 300

None

495,000 1, 178, 300

1,673, 300

14,700 2.12 to 1

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